t3lib_cache_frontend_stringfrontendTest.php

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<?php
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*
*  (c) 2009-2011 Ingo Renner <ingo@typo3.org>
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/**
 * Testcase for the string cache frontend
 *
 * This file is a backport from FLOW3
 *
 * @author  Ingo Renner <ingo@typo3.org>
 * @package TYPO3
 * @subpackage tests
 * @version $Id: t3lib_cache_frontend_stringfrontendTest.php 10121 2011-01-18 20:15:30Z ohader $
 */
class t3lib_cache_frontend_StringFrontendTest extends tx_phpunit_testcase {

    /**
     * @expectedException InvalidArgumentException
     * @test
     * @author Robert Lemke <robert@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function setChecksIfTheIdentifierIsValid() {
        $cache = $this->getMock('t3lib_cache_frontend_StringFrontend', array('isValidEntryIdentifier'), array(), '', FALSE);
        $cache->expects($this->once())->method('isValidEntryIdentifier')->with('foo')->will($this->returnValue(FALSE));
        $cache->set('foo', 'bar');
    }

    /**
     * @test
     * @author Karsten Dambekalns <karsten@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function setPassesStringToBackend() {
        $theString = 'Just some value';
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);
        $backend->expects($this->once())->method('set')->with($this->equalTo('StringCacheTest'), $this->equalTo($theString));

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $cache->set('StringCacheTest', $theString);
    }

    /**
     * @test
     * @author Karsten Dambekalns <karsten@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function setPassesLifetimeToBackend() {
        $theString = 'Just some value';
        $theLifetime = 1234;
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);
        $backend->expects($this->once())->method('set')->with($this->equalTo('StringCacheTest'), $this->equalTo($theString), $this->equalTo(array()), $this->equalTo($theLifetime));

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $cache->set('StringCacheTest', $theString, array(), $theLifetime);
    }

    /**
     * @test
     * @author Karsten Dambekalns <karsten@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     * @expectedException t3lib_cache_exception_InvalidData
     */
    public function setThrowsInvalidDataExceptionOnNonStringValues() {
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $cache->set('StringCacheTest', array());
    }

    /**
     * @test
     * @author Robert Lemke <robert@typo3.org>
     * @author Karsten Dambekalns <karsten@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function getFetchesStringValueFromBackend() {
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);
        $backend->expects($this->once())->method('get')->will($this->returnValue('Just some value'));

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $this->assertEquals('Just some value', $cache->get('StringCacheTest'), 'The returned value was not the expected string.');
    }

    /**
     * @test
     * @author Robert Lemke <robert@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function hasReturnsResultFromBackend() {
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);
        $backend->expects($this->once())->method('has')->with($this->equalTo('StringCacheTest'))->will($this->returnValue(TRUE));

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $this->assertTrue($cache->has('StringCacheTest'), 'has() did not return TRUE.');
    }

    /**
     * @test
     * @author Sebastian Kurfürst <sebastian@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function removeCallsBackend() {
        $cacheIdentifier = 'someCacheIdentifier';
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);

        $backend->expects($this->once())->method('remove')->with($this->equalTo($cacheIdentifier))->will($this->returnValue(TRUE));

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $this->assertTrue($cache->remove($cacheIdentifier), 'remove() did not return TRUE');
    }

    /**
     * @test
     * @expectedException InvalidArgumentException
     * @author Karsten Dambekalns <karsten@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function getByTagRejectsInvalidTags() {
        $backend = $this->getMock('t3lib_cache_backend_Backend', array(), array(), '', FALSE);
        $backend->expects($this->never())->method('getByTag');

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $cache->getByTag('SomeInvalid\Tag');
    }

    /**
     * @test
     * @author Karsten Dambekalns <karsten@typo3.org>
     * @author Ingo Renner <ingo@typo3.org>
     */
    public function getByTagCallsBackend() {
        $tag = 'sometag';
        $identifiers = array('one', 'two');
        $entries = array('one value', 'two value');
        $backend = $this->getMock('t3lib_cache_backend_AbstractBackend', array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'findIdentifiersByTags', 'flush', 'flushByTag', 'flushByTags', 'collectGarbage'), array(), '', FALSE);

        $backend->expects($this->once())->method('findIdentifiersByTag')->with($this->equalTo($tag))->will($this->returnValue($identifiers));
        $backend->expects($this->exactly(2))->method('get')->will($this->onConsecutiveCalls('one value', 'two value'));

        $cache = new t3lib_cache_frontend_StringFrontend('StringFrontend', $backend);
        $this->assertEquals($entries, $cache->getByTag($tag), 'Did not receive the expected entries');
    }
}

?>